With Intelligent Key System

DOOR LOCK AND UNLOCK SWITCH

DRIVER SIDE : Diagnosis Procedure

Regarding Wiring Diagram information, With Intelligent Key System.

1. CHECK DOOR LOCK/UNLOCK SWITCH INPUT SIGNAL

With CONSULT
Check main power window and door lock/unlock switch ("CDL LOCK SW", "CDL UNLOCK SW") in DATA
MONITOR mode in CONSULT.
- When main power window and door lock/unlock switch is turned to LOCK:
CDL LOCK SW:ON
- When main power window and door lock/unlock switch is turned to UNLOCK:
CDL UNLOCK SW:ON
Without CONSULT
1.Remove key from ignition key cylinder.
2.Using an oscilloscope, check the signal between BCM connector M18 terminal 22 and ground when the main power window and door lock/unlock switch is turned to LOCK or UNLOCK.
3.Make sure the signals which are shown in the figure below can be detected during 10 seconds just after the door lock/unlock switch is turned to LOCK or UNLOCK.










Is the inspection result normal?
YES- Door lock and unlock switch circuit is OK.
NO- GO TO 2

2. CHECK BCM OUTPUT SIGNAL

1.Turn ignition switch OFF.
2.Using the vehicle operational Intelligent Key, press and hold the UNLOCK button for more than 3 seconds.
The front windows should be lowered.
Is the inspection result normal?
YES- GO TO 3
NO- Replace BCM. Service and Repair.

3. CHECK DOOR LOCK/UNLOCK SWITCH GROUND HARNESS

1.Disconnect main power window and door lock/unlock switch.





2.Check continuity between main power window and door lock/
unlock switch connector D8 terminal 17 and ground.
17 - Ground: Continuity should exist.
Is the inspection result normal?
YES- GO TO 4
NO- Repair or replace harness.

4. CHECK POWER WINDOW SERIAL LINK CIRCUIT

1.Disconnect BCM.
2.Check continuity between BCM connector M18 terminal 22 and main power window and door lock/unlock switch connector D7 terminal 14.





22 - 14: Continuity should exist.
3.Check continuity between BCM connector M18 terminal 22 and ground.





22 - Ground: Continuity should not exist.
Is the inspection result normal?
YES- Replace main power window and door lock/unlock switch.
NO- Repair or replace harness.